{"title":"脱水沸石NaY中的阳离子位置重访:SI位置从六角形棱镜的中心移位","authors":"Günter Engelhardt","doi":"10.1016/S0927-6513(97)00069-2","DOIUrl":null,"url":null,"abstract":"<div><p>Recent multiquantum magic-angle spinning and double rotation <sup>23</sup>Na-NMR experiments of dehydrated zeolite NaY have shown that sodium cations on site SI in the hexagonal prism are subject to appreciable quadrupolar interactions. This indicates that the SI cations are not located in the classical center position derived from X-ray and neutron diffraction studies but are displaced from the center by 0.6 Å along the [111] direction.</p></div>","PeriodicalId":100926,"journal":{"name":"Microporous Materials","volume":"12 4","pages":"Pages 369-373"},"PeriodicalIF":0.0000,"publicationDate":"1997-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0927-6513(97)00069-2","citationCount":"17","resultStr":"{\"title\":\"Cation location in dehydrated zeolite NaY revisited: SI position is displaced from the center of the hexagonal prism\",\"authors\":\"Günter Engelhardt\",\"doi\":\"10.1016/S0927-6513(97)00069-2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Recent multiquantum magic-angle spinning and double rotation <sup>23</sup>Na-NMR experiments of dehydrated zeolite NaY have shown that sodium cations on site SI in the hexagonal prism are subject to appreciable quadrupolar interactions. This indicates that the SI cations are not located in the classical center position derived from X-ray and neutron diffraction studies but are displaced from the center by 0.6 Å along the [111] direction.</p></div>\",\"PeriodicalId\":100926,\"journal\":{\"name\":\"Microporous Materials\",\"volume\":\"12 4\",\"pages\":\"Pages 369-373\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1997-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S0927-6513(97)00069-2\",\"citationCount\":\"17\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Microporous Materials\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0927651397000692\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microporous Materials","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0927651397000692","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Cation location in dehydrated zeolite NaY revisited: SI position is displaced from the center of the hexagonal prism
Recent multiquantum magic-angle spinning and double rotation 23Na-NMR experiments of dehydrated zeolite NaY have shown that sodium cations on site SI in the hexagonal prism are subject to appreciable quadrupolar interactions. This indicates that the SI cations are not located in the classical center position derived from X-ray and neutron diffraction studies but are displaced from the center by 0.6 Å along the [111] direction.
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